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(C) Lymphocytes are the primary cells of the immune system. They originate in the bone marrow. Secondary lymphoid organs like the spleen,lymph nodes,t

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Spleen

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(C) Lymphocytes are the primary cells of the immune system. They originate in the bone marrow. Secondary lymphoid organs like the spleen,lymph nodes,tonsils,Peyer's patches of the small intestine,and appendix provide the sites for interaction of lymphocytes with the antigen,which then proliferate to become effector cells. Therefore,the spleen is a secondary lymphoid organ where this interaction occurs. While bone marrow and thymus are primary lymphoid organs where maturation occurs,the interaction with antigens typically happens in secondary lymphoid organs.

Column-$I$	Column-$II$
$(A)$ Physical barriers	$(1)$ Interferon
$(B)$ Physiological barriers	$(2)$ Leukocytes
$(C)$ Cellular barriers	$(3)$ Tears
$(D)$ Cytokine barriers	$(4)$ Skin

Lymphocytes interact with antigens at the .....

Similar Questions

Passive acquired immunity can be obtained through the introduction of which of the following?

Match the following columns:

Column-$I$ Column-$II$

$(A)$ Physical barriers $(1)$ Interferon

$(B)$ Physiological barriers $(2)$ Leukocytes

$(C)$ Cellular barriers $(3)$ Tears

$(D)$ Cytokine barriers $(4)$ Skin

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